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Engine Quits on hard launch???

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Old Jun 19, 2006 | 09:21 AM
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Default Engine Quits on hard launch???

Been stripping out my car for race only and mods are in my sig. Getting use to my T-brake, I finally started launching hard, lifting both tires. The problem is, when I pull the front end the engine shutters and starts to shut done, when it is level on the track again, it recovers.
Any help would be appreciated.
Mike

Last edited by mvonada; Jun 19, 2006 at 09:27 AM. Reason: word
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Old Jun 19, 2006 | 09:35 AM
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Check that the battery is secured, if it's still up front, they've been known to roll backwards, get something across the terminals, and short out until the front of the car comes back down.
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Old Jun 19, 2006 | 10:14 AM
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Maybe fuel.....how much gas in the tank? You may be sucking air...
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Old Jun 19, 2006 | 10:25 AM
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Thanks for the replys. Checked the battery and put fuel in it at the track.

Just wondering if there is something like a mercury switch that will shut things down if it senses extreme body roll.
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Old Jun 19, 2006 | 10:28 AM
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Nope no mercury switches. There are guys dragging bumpers and not cutting off the engine.

You have an issue somewhere.
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Old Jun 19, 2006 | 10:40 AM
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Thanks, you gotta love tracking down a problem like this!
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Old Jun 19, 2006 | 01:40 PM
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Check the ground on the back of the passenger side head. My car did this and the ground was loose.
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Old Jun 19, 2006 | 03:20 PM
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I was thinking either a short in you wiring somewhere or fuel sloshing around in the tank. The fuels easy, hunting down a loose wire can be a pain in the a$$.
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Old Jun 20, 2006 | 08:29 AM
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Originally Posted by DSG
Check the ground on the back of the passenger side head. My car did this and the ground was loose.
Not sure what or where you mean, is it the battery?? Thanks for the in put.
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Old Jun 20, 2006 | 10:17 AM
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There is a ground that is bolted to the back side of the Drivers side head. I know I said passenger before, Sorry.

If the bolt is loose the car wont run or will die intermittantly.
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Old Jun 20, 2006 | 10:19 AM
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Also another problem is that the negative battery cables rott from the inside out. Also had that problem....I have had lots of problems...
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Old Jun 20, 2006 | 02:01 PM
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DSG - Thanks for the tips, I will check it out and post any results.
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Old Jun 29, 2006 | 08:12 PM
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Well finally found it (little embarassed because I checked it once) on launching the battery tipped back (battery bracket was broken) and the positive terminal shorted against a metal bracket, causing the engine to stumble. Lucky as hell I did not fry my CPU!
Thanks for all the help on this and especially to Colongo_SS, I will check it closer next time.
Oh, the battery is being relocated to the back this weekend!
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